Sikadur 33 Rapid Curing Epoxy Adhesive

Structural, Smooth-Paste Epoxy Adhesive for Concrete Repair and Bonding

Sikadur-33 is a 2-component, 100% solids, moisture-tolerant, high-modulus, high-strength, structural, smooth-paste epoxy adhesive with rapid curing properties.

Uses:

As a structural adhesive for:

• Concrete elements
• Hard natural stone
• Ceramics, fibre cement
• Mortar, Bricks, Blocks, Masonry, render etc.
• Steel, Iron, Aluminium
• Wood
• Polyester, Epoxy

For concrete repairs:

• Interior, vertical and overhead repair of corners and edges
• Hole and void filling
• Joint arrises

For joint filling and crack sealing (non-moving).

For metalwork and carpentry:

• Fixing and fastening of handrails, railings, balustrades and supports
• Fixing of window and door frames

Suitable for use on concrete, hard natural stone, solid rock, hollow and solid masonry, steel, and wood.

Characteristics / Advantages:

• Can be used on damp concrete
• Excellent adhesion to the substrate
• Non-sag, also overhead
• High load capacity
• Shrinkage-free hardening
• Styrene-free

Product Information:

• Composition: Epoxy resin
• Packaging: 2.7 kg kit 
• Shelf life: 12 months from date of production
• Storage conditions: Dry conditions, +10 °C to +30 °C, in original, unopened packaging, protected from direct sunlight
• Colour: Component A (white), Component B (grey), Mixed (Concrete grey)
• Density (Mixed A+B at +23 °C): 1.35 kg/l

Application Information:

• Mixing ratio (A:B by volume): 1 : 1
• Consumption: ~1.35 kg/m² per mm of thickness
• Layer thickness: 0.5 mm min. / 10 mm max.
• Sag flow: Non-sag, suitable for overhead application
• Ambient air/Substrate temperature: +10 °C min. / +35 °C max.
• Relative air humidity (at 25 °C): 85% max.
• Substrate moisture content: Dry or mat damp (no standing water)
• Pot Life (at +23 °C): 60 minutes
• Open Time (T gel): +10 °C (210 minutes), +20 °C (90 minutes), +35 °C (45 minutes)
• Curing Time (T cur, approx. 80% performance): +10 °C (3 days), +20 °C (2 days), +35 °C (1 day)

Important Considerations:

• Minimum substrate and ambient temperature 4 °C.
• Do not thin with solvents.
• Material is a vapour barrier after cure.
• Not for sealing cracks under hydrostatic pressure at the time of application.

Application Instructions:

Substrate Quality: Mortar and concrete (>28 days) must have adequate strength. Substrate (concrete, masonry, natural stone) must be clean and sound.

Mixing: Pre-mix each component. Proportion equal parts by volume of Component B and Component A into a clean pail. Mix thoroughly for 3 minutes with a Sika paddle at low speed (400-600 rpm) until uniform in colour. Mix only the quantity that can be used within its pot life.

Application: Apply Sikadur-33 to the prepared substrate by trowel or gloved hand, ensuring good contact. For adhesive applications, coat both surfaces and press together (provide temporary support for vertical and overhead applications). Adhesive layer should be ≥ 2 mm. For crack sealing, apply neat mixed material over cracks and around injection ports. For anchoring bolts, grout with neat Sikadur-33.

Cleaning of Equipment: Clean uncured material with Sika Colma Cleaner. Cured material can only be removed mechanically.

Get unbeatable trade prices and fast nationwide shipping on all Sika products. Pick up your order from our store, Sika Wetherill Park in Sydney, or any Sika warehouse nationwide. 

Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.

Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.